Add 1/84 and 90/75
1st number: 1/84, 2nd number: 1 15/75
1/84 + 90/75 is 509/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
1/84 = 1 × 25/84 × 25 = 25/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
90/75 = 90 × 28/75 × 28 = 2520/2100 - Add the two like fractions:
25/2100 + 2520/2100 = 25 + 2520/2100 = 2545/2100 - 2545/2100 simplified gives 509/420
- So, 1/84 + 90/75 = 509/420
In mixed form: 189/420
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